초록 ▼

A laser tracker includes a first optical system located on a structure and that launches a beam from the structure. The laser tracker also includes a locator camera having a second optical system that includes a lens having a center and a clear aperture through which light may pass. The clear apertu

A laser tracker includes a first optical system located on a structure and that launches a beam from the structure. The laser tracker also includes a locator camera having a second optical system that includes a lens having a center and a clear aperture through which light may pass. The clear aperture has a clear aperture diameter. The second optical system includes a light source that illuminates a retroreflector, receives light reflected back from the retroreflector and forms an image on a photosensitive array that is converted to a digital data set from which the angular direction of the targets can be determined.

대표청구항 ▼

What is claimed is: 1. A laser tracker, comprising:a structure that comprises a first optical system and a housing, wherein:the structure rotates about a first angle and a second angle; andthe first optical system launches a beam from the structure;a locator camera that comprises a second optical sy

What is claimed is: 1. A laser tracker, comprising:a structure that comprises a first optical system and a housing, wherein:the structure rotates about a first angle and a second angle; andthe first optical system launches a beam from the structure;a locator camera that comprises a second optical system, a photosensitive array, and at least one light source, wherein:the locator camera is attached to the housing;the second optical system comprises a lens having a center and a clear aperture through which light may pass, wherein the clear aperture has a clear aperture diameter;the at least one light source emits a cone of light from a first point;the cone of light illuminates a set of targets, wherein the set of targets comprises at least a first retroreflector having a first retroreflector diameter;the distance from the first point to the center of the lens is less than a sum of the first retroreflector diameter and the clear aperture diameter;a first ray of light reflected by the first retroreflector travels to the lens in a straight line; andthe second optical system forms a first image on the photosensitive array of the set of targets;a first electronics system that converts the first image to a digital data set; anda second electronics system that determines a set of approximate angular directions for the set of targets based at least in part on the digital data set.